1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164ffff92ace4bc6e2d23825c517c2a30fad28de9008f144c1005d54e564307. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9af4a3a0-282b-47d0-adec-81672865d5c0.json and https://artists.proofprofile.net/proofs/artist/9af4a3a0-282b-47d0-adec-81672865d5c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c16d39695c205cbdcdd2c71dd9f86060db0399848e915403b3d68638d5091ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812362668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7280d9eaae362f6dac4e082d4a6c0f8e348a48b12258b88e9109c8b21d3cca48. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812355710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221803b471b18d63cadb4cd611baee13cd3364a29ac987143c97d58dd81fbf27. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2256773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe71ca357380c1c0701c452ff9f7b308788cfb3d002bb893113a42f3ca782c1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1ZN2201789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf165cf0401cbb434bb44f8045dec3faaed98d72aea185bdacccb14de1f1add6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPY32000250.
Thomas Gold Presents: Fanfare Club Beats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41912b21d92e543d97836216165cf87ec1c6dc5995d58aabc416de2bf41a48f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWW42000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4903f9fce4da64690b164f227559e905aac8242e1d750eb7d2b7aac083942e9a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWW42000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510b4b71a8eec669aca2096480a0ac61e63f204e94fe18db3061d4eb7e05d330. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLBW51700325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687c45d9fa294118fa4aa652922309c395783b7f1e5de8e9ef3ece1acebedad0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLBW51700327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa34deb642b1750faa32b84d74828c243e840373be3f34bb05a4f33585eb4ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL83A2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa465bb38802769f9155674ec6a9a48e05d4732b9815d181968b010ef590bc99. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLBW51700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a70c63cac55e3c0cf112d9544096190937fbf91d028a2cc9a9b42090497c494. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1992660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f49c867691e3f45cbd62bb93c3d0b29394c516a81e6616abff839d112c63a83. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL83A2000025.
Nothing But... Future House Selections, Vol. 05
I Don't Wanna Play (No Games) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9a28cd424edeb011e710cb880f42dd688638643d4cd04d72501eb4e785ccd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW872101094.
Loud & Dirty: The Electro House Collection, Vol. 38